Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1989-07-05
1990-12-18
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
D 7624, 2483461, 428 64, 428159, 428160, 4283044, 4283166, B32B 326, A47G 2900
Patent
active
049785664
ABSTRACT:
A reusable, composite coaster for use with a beverage container is characterized by a base substrate of open cell foam material which is heat fusion and pressure bonded to a cover substrate of polymeric fabric material. The open weave of the polymeric fabric material permits moisture to drain into the open cell foam layer, while preventing the buildup of a partial vacuum between the bottom surface of a beverage container and the coaster surface. Moreover, the polymeric fabric cover substrate increases the tear resistance of the assembly, while the open cell foam layer increases the reservoir capacity of the composite assembly.
REFERENCES:
patent: 3797796 (1974-03-01), Lansdowne
patent: 4137356 (1979-01-01), Shoemaker et al.
patent: 4206570 (1980-06-01), Cooper
patent: 4540611 (1985-09-01), Henderson
Heavers Robert G.
Scheurer Robert S.
Griggs Dennis T.
Robert S. Scheurer
Van Balen William J.
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